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목록Flatten Binary Tree to Linked List (1)
Scribbling
LeetCode: 114. Flatten Binary Tree to Linked List
현재 node -> Flattened Left Tree -> Flattened Right Tree # Definition for a binary tree node. # class TreeNode: # def __init__(self, val=0, left=None, right=None): # self.val = val # self.left = left # self.right = right class Solution: def flatten(self, root: Optional[TreeNode]) -> None: """ Do not return anything, modify root in-place instead. """ if not root: return None head, tail = self.helpe..
Computer Science/Coding Test
2021. 11. 2. 14:13